Trata-se de estudo de campo, com abordagem quantitativa, sobre o nível de comprometimento organizacional de fiscais da vigilância sanitária municipal. Foram analisadas possíveis diferenças entre os grupos amostrais, divididos de acordo com suas características sociodemográficas. Participaram do estudo 335 fiscais de 53 municípios de Goiás, que responderam à Escala de Bases do Comprometimento Organizacional em 2011. A escala aborda sete diferentes tipos de vínculo que os trabalhadores têm em relação à instituição onde trabalham, além de dados pessoais e profissionais. As análises realizadas foram: descritivas, de variância e testes qui-quadrado. Encontrou-se alto comprometimento afetivo e alto sentimento de obrigação pelo desempenho no trabalho, baixos níveis nos sentimentos de afiliação e de obrigação em permanecer trabalhando na vigilância sanitária municipal, bem como diferenças entre grupos quando levadas em conta as características individuais e profissionais. Os gestores públicos da área devem atentar para a importância dos recursos humanos no desenvolvimento das políticas públicas e priorizar ações que resultem em níveis elevados de comprometimento desses profissionais.

This is a field study, with a quantitative approach, on the level of organizational commitment among municipal health surveillance inspectors. An analysis was made of possible differences between the sample groups, which were divided according to their sociodemographic characteristic s. The study included 335 inspectors from 53 Goiás, Brazil, municipalities, who responded to the 2011 Organizational Commitment Scale Bases. The scale covers seven different types of ties that employees have with the institutions they work for, as well as personal and professional data. The analyses were descriptive, variance, and chi-square tests. Noted were a high affective commitment and high sense of obligation for job performance, low feelings of affiliation and obligation to continue working in municipal health surveillance, in addition to differences between groups when the individual and professional characteristics were taken into account. The area's public managers should pay attention to the importance of human resources in the development of public policies and prioritize actions that result in high levels of commitment among these professionals.

Se trata de un estudio de campo con un enfoque cuantitativo, sobre el nivel de compromiso organizacional de los fiscales de la vigilancia sanitaria municipal. Se analizaron las posibles diferencias entre los grupos de muestra, divididos en función de sus características sociodemográficas. El estudio incluyó a 335 fiscales de 53 municipios de Goiás (Brasil), que respondieron a la Escala de Bases del Compromiso Organizacional en 2011. La escala cubre siete tipos diferentes de vínculos que tienen los trabajadores en relación con la institución en la que trabajan, así como datos personales y profesionales. Los análisis realizados fueron: descriptivos, de varianza y pruebas de chi-cuadrado. Se encontró un alto compromiso afectivo y alto sentimiento de obligación por el desempeño en el trabajo, bajos niveles en los sentimientos de afiliación y de obligación de permanencia en el trabajo de la vigilancia sanitaria municipal, así como diferencias entre los grupos cuando se toman en cuenta las características individuales y profesionales. Los gestores públicos del área deben prestar atención a la importancia de los recursos humanos en el desarrollo de las políticas públicas y priorizar las acciones que resulten en altos niveles de compromiso de estos profesionales.

The reproductive activity of Biomphalaria glabrata exposed to Euphorbia splendens var. hislopii latex was evaluated. Parameters related to fecundity and fertility were observed. The snails were exposed to the LD50 (1 mg/l) of crude latex. At the first week post exposure (p.e.), the egg laying was reduced. After the fourth week p.e., an increase of the number of eggs/snail occurred. The results showed a marked reduction in the hatching of the snails, revealing an interference of latex exposure with the reproductive process of B. glabrata of E. splendens var. hislopii. The LD50 of the latex may be used as an alternative method to control the size of the populations of B. glabrata in field.

Using high performance liquid chromatography (HPLC) analysis it was possible to determine simultaneously the concentration of organic acids (pyruvate, lactate, succinate, fumarate, malate, acetate, propionate, acetoacetate, and ß-hydroxybutyrate) in the digestive gland and the extracellular concentration of these same acids in the hemolymph of estivating Biomphalaria glabrata, the intermediate host of Schistosoma mansoni. After a 7 day period of estivation, there was a significant increase in the tissue levels of lactate, succinate, malate and acetate compared to non-estivating snails. After 14 days of estivation, the levels of lactate and acetate were also significantly elevated. The hemolymph concentrations of pyruvate and acetate increased significantly after 7 days and acetate concentrations continued to be significantly increased up to 14 days of estivation. The other organic acids studied, such as ketone body acetoacetate and ß-hydroxybutyrate or the volatile acid propionate, did not accumulate. Their tissue concentrations, however, increased on the 7th day of estivation and reached normal levels within two weeks of estivation for some of them. One should take into consideration how the reduction in metabolism can be handled under aerobic conditions, and what role anaerobic pathways may play in both energy formation and redox balance processes.

The freshwater snail Biomphalaria glabrata is an intermediate host of the trematode Schistosoma mansoni. However, some strains of B. glabrata are resistant to successful infection by S. mansoni larvae. The present work examines the profile of organic acids present in S. mansoni-resistant and -susceptible strains of B. glabrata, in order to determine whether the type of organic acid present is related to susceptibility. The organic acids were extracted from the hemolymph of two susceptible B. glabrata strains (PR, Puerto Rico and Ba, Jacobina-Bahia from Brazil), and from the resistant strains 13-16-R1 and 10R2, using solid phase extraction procedures followed by high performance liquid chromatography. The organic acids obtained were analyzed and identified by comparison with known standards. Pyruvate, lactate, succinate, malate, fumarate, acetate, propionate, ß-hydroxybutyrate and acetoacetate were detected in all hemolymph samples. Under standard conditions, the concentration of each of these substances varied among the strains tested and appeared to be specific for each strain. An interesting variation was the low concentration of pyruvate in the hemolymph of PR-snails. Only the concentration of fumarate was consistently different (p£ 0.05) between resistant and susceptible strains